q 9 / 2 − 3 q 7 / 2 + 6 q 5 / 2 − 10 q 3 / 2 + 12 q − 13 q + 12 q 3 / 2 − 10 q 5 / 2 + 6 q 7 / 2 − 3 q 9 / 2 {\displaystyle q^{9/2}-3q^{7/2}+6q^{5/2}-10q^{3/2}+12{\sqrt {q}}-{\frac {13}{\sqrt {q}}}+{\frac {12}{q^{3/2}}}-{\frac {10}{q^{5/2}}}+{\frac {6}{q^{7/2}}}-{\frac {3}{q^{9/2}}}}
